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Nam, S.H.

Paper Title Page
PT14 Design of BPM PU for Low-Beta Proton Beam Using Magic Code 199
 
  • S.J. Park, J.H. Park, Y.S. Bae, W.H. Hwang, J.Y. Huang, S.H. Nam
    POSTECH, Pohang Accelerator Laboratory, Pohang, Korea
  • Y.S. Cho, J.M. Han, S.H. Han, B.H. Choi
    KAERI, Proton Engineering Frontier Project, Korea
 
  We have designed the BPM PU based on capacitive buttons for use in the KOMAC (Korea Multi-purpose Accelerator Complex), the high-intensity proton linac that are under development at the KAERI (Korea Atomic Research Institute), Korea. The KOMAC is aiming to produce CW 20 mA beam current at the 100 MeV energy. We have chosen the button-type PU since it is easier to fabricate than other type PUs including the stripline, and it could provide enough signal power because of the high beam current. The PU sensitivity was calculated by the MAGIC that is a kind of the Particle-In-Cell code that originates from the plasma science community. The utilization of the MAGIC code is especially useful for BPM PUs in the low-beta sections of the accelerator, because it is difficult to obtain the PU sensitivity experimentally due to the difficulties in simulating the low-beta beams by the electromagnetic waves in a test bench. In this presentation, we report on the design of the BPM PU based on the MAGIC calculation.